package server;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.timeout.IdleStateHandler;
/**
 * 配置网络连接信息，等待客户端连接
 */
public class MyServer {
	EventLoopGroup bossGroup = new NioEventLoopGroup();
	EventLoopGroup workerGroup = new NioEventLoopGroup();
	ChannelFuture f = null;
	public void run(int port) throws InterruptedException{
		try {
			//启动NIO服务端的辅助启动类
			ServerBootstrap b = new ServerBootstrap();
			b.group(bossGroup, workerGroup)
					.channel(NioServerSocketChannel.class)//设置nio服务端通道
					.option(ChannelOption.SO_BACKLOG, 1024*10)//设置缓冲大小为1MB
					.childHandler(new ChannelInitializer<SocketChannel>() {
						@Override
						protected void initChannel(SocketChannel ch) throws Exception {
							ch.pipeline().addLast(new IdleStateHandler(1800,0,0),//心跳控制，实现自动获取
									new MyServerHandler());
						}
					});//绑定I/O事件处理类
			//绑定端口，同步等待成功
			ChannelFuture f = b.bind(port).sync();
			System.out.println("--------等待客户端连接--------");
			
			//等待服务端监听端口关闭
			f.channel().closeFuture().sync();
		} finally{
			//优雅退出，释放线程池资源
			bossGroup.shutdownGracefully();
			workerGroup.shutdownGracefully();
		}
	
	}
}
